Dustless blind structure



L. CHARTOFF DUSTLESS BLIND STRUCTURE Aug. 19, 1952 2 sr-IEETs-sHEET 1 Filed Nov. 30, 1948 L. CHARTOFF DUSTLESS BLIND STRUCTURE 2 SHEETSSHEET 2 Filed Nov. 30, 1948 wig/0.

Patented Aug. 19, 1952 UNITED-STATES PATENT OFFICE 2,607,090 DUSTLESS BLIND STRUCTURE Louis Chartofl, New Haven, (John. 7 Application November 30, 194 8 Serial No. 62,780

This invention relates to a dustless blind structure, and has for one of its objects the production of a Simple and efficient blind, storm sash, and window screen assembly wherein the storm sash may be easily replaced by the window screen and vice versa when desired.

A further object of this invention is the production of a simple and efilcient actuating means for shifting the louvers or slats to andfrom' an open or closed position.

Another object of this invention is the production of a simple and eflicient mean for looking; the removable louvers or slats in an operae tive position upon the supporting frame. d

Other objects and advantages of the present invention will appear throughout the following specification and claims.

In the drawings:

Figure 1 is an elevational View of the blind looking at the inside face thereof, a certain portion of the window frame also being shown;

Figure 2 is an elevational view looking at the outside face of the blind, and showing the storm sash in position; v

Figure 2 is a fragmentary elevational view of a window screen panel which may replacethe storm sash panel; v a I Figure 3 is an enlarged horizontal sectional View of the blind structure taken on line 33 of Figure 1;

Figure 4 is a fragmentarysectional perspective view showing portions of an upperand lower slat or louver, the actuating bar and the central slat supporting means;

Figure 5 is a fragmentary sectional perspective view of the central slat journal channelmember;

Figure 6 is a group fragmentary sectional perspective view of the top slat journal channel member and closure channel;

Figure 7 is a fragmentarysectional perspective view of the bottom slat journal channel member form of a blind supporting frame, illustrating a pair of oppositely hinged sections;

Figure 11 is a fragmentary vertical sectional view illustrating the mannerin which the frame shown in Figure 9 is assembled with the frame shown in Figure 8;

Figure 12 is a group elevational view illustrating a modified type of hinge which may be used to hinge the blind frame to a window frame;

4 Claims. (01. 20-62) Figure 13 is a fragmentary vertical sectional view of a slat showing a modified type of slat supporting journal pin;

Figure 1.4 is a fragmentary perspective vertical sectional viewof a. slat showing astill further modified type of supporting, journal pin.

' Byreferring to the drawings, it will be seen that H] designates a conventional window frame, within which ishinged the blind frame II by means of suitable hinges [2. The blind frame ll includes a top slat journal channel I3; a bottom slat journal channel l4 and an intermediate slat journal channel I5; shown in detail in Figures 5, 6 and 7. The channel l3 is provided with a bot,- tom flange l6 having inwardly extending slots l.'| into which the journal ends [8 of the vertical slats l llremovably fit. After the journal ends I 8 have been placed in the slots I1, the retaining channel 20 is fitted over the front open face of the journal.

channel I 3. The retaining channel 20 is provided with transverse slots or notches 2i whichregister with the notches or slots l1 and lock. thejournal ends it of the slats l9 within the notches l'l. The notches 2| and I! extend in overlapping relation when the channels l3 and 20 are assembled, the

' notches 2| having their open ends extending in a direction opposite to the open ends of the notches ll, as shown in Figure 6. The journal ends l8 are r the channel l3 with the exception that the journal.

end receiving notches 22 are formed in the upper flange 23 thereof. The open face of the bottom channel [4 is encased by a closure channel 24 similar to the channel 20 and is provided with suitable notches to register with the notches 22 to facilitate the locking of the bottom slat journals in position upon the bottom channel I 4.

The intermediate channel [5 is provided with upper and lower parallel flanges 25 and 26. The flange 25 is provided with a plurality of spaced notches 21 and the lower flange 26 is provided with similar spaced notches 28 in vertical alignment with the notches 27. A closurechannel 29 en'- casesthe open face of the channel [5 and is providedwith suitable notches-3 0 in the upper flange; 3| thereof which register with the notches 21 to lock the journal ends of the-slats IS in position. The lower flange 32 is provided with similar notches 33 which register with the notches 28to ,vhold the top journal ends of the lower group of slats l9 in place.

The slats [3 are preferably divided into two groups, one group being secured to an actuating bar 34 and the other group being secured to the actuating bar 35, as shown in Figure 3. These actuating bars 34 and 35 are slidably mounted upon the top fiange 3! of the retaining channel 29. Bracing brackets 36 and 31 are secured to the front face of the channel 3! to provide a support for the actuating bars when they are moved outwardly upon the channel 29, note the position of bar 35 in Figure 3. The actuating bar 34 is provided with inwardly extending split spring fingers 38 which releasably engage .the dependthe bar. The pin 39 of each slat I9 is off-set laterally relative to the journal and I8 thereof so as to act as a crank in conjunction with its engaging finger 38 to rotate the slat i9 as the actuating bar 34 is pulled outwardly and shifted laterally of the frame or longitudinally upon ,the top flange 3| of the channel 29. This operation will rotate the slats I 9 from a closed toan open position, as will be obvious. A reverse operation of the actuating bar 34 will closethe slats. The adjacent group of slats are actuated by the bar 35.and this bar 35 is connected to said adjacent group of slats by means of the split spring fingers 4lin a manner as described withrespectto fingers 38.. A storm sash and screen supporting frame 42 is detachably secured to the frame ii and rests upon the upturned hook '43 at the bottom of the frame! i. Securing hooks or means of any suitable type 44 secure the upper end of the frame 42 to theframe ll A central brace 45 is carried by the frame 42, Aremovable storm sash 46 is carried by the U er half of the frame 42., and a removable storm sash 4'! is carried by the lower half .of the frame 42. These sashes 46 and 4'1 may be replaced when'it is desired by screen panels such as the panel 48 a portion of which is shown in Figure 2 V, l r In Figure 8 there is shown a modified form of blind frame 58 havinghinges at one side edge and a latch 52 at the opposite side edge. The frame 58 is provided with notches 53 at the top edge thereof for receiving the overhanging hooks 54 which are carried by the sash frame 55 of the type substantially similar to the frame The frame 53. is provided with a suitable 42. lock 56 for receiving the notch 51 of the frame 55 to lock the frame 55 against accidental displacement. This lock 53may be of any suitable In Figure there is shown a modified form of blind wherein the, Window frame carries a pair of hinged frames 57, each of which supports an upper group of vertical slats 58, and a similar group of lower slats, one group being supported in the upper frame section 59 and the other in the lower frame section 68. The frames 5'! are preferably hinged, as at 61, .to the window frame and preferably are latched together by means of a suitable lock or latch 62 at the center.

By hinging the'blind frame or frames to the window frame; it'should be noted that the blind frame or frames maybe swung to provide an opening in the Window frame when it is desired,

and to permit access tot-he conventional window carried by the conventionalwindow frame.

In Figure 13 there is shown a modified type of 4 receiving the end of a slat m A tapering tongue 66 extends laterally of the longitudinal axi of the slot 64 and is adapted to fit into the aperture 6'! formed in the slat I9 to fasten the journal pin 63 to the slat 19- and thereby avoid the necessity for soldering.

In Figure 14 a further modified form of a journal pin 63 is shown having a zig-zag slot 54" defining" a tapering tonguej 66% for fitting into the aperture 67 formed intheslat l9", to avoid soldering. The tongue 66 extends laterally of the longitudinal axis of the slot 54 to lock the pin in position.

The present invention constitutes an improvement upon the structure shown in my co-pending application relating to a Dustless Blind, Serial Number 39,113, filed July 1c, 1948, now Patent No. 2,552,406, dated May 8, 1951.

The slats or louvers; by being mounted vertically in the supporting frame will tend ,to resist thesettling of dust thereon, as is'the case with transversely supported slats. As will be noted, the slats, are so mounted in groups as to turn about their axes by shifting the actuating bars, thereby permitting the adjustment of selected groups toa desired position. f For instance, one group may be opened and another group closed,

or a selected group {nay be partly opened at the will of an operator.

Having described the invention, What is claimed asnewis: I If 1. A Venetian blind structure comprising a frame, vertical slats rotatably mounted on said frame upon vertical axes, a depending actuating pin carried by each slat, an actuating bar shift-. able laterally of said frame, and a plurality of protruding slotted spring pin engaging fingers detachably engaging said pins of. said slats for rotating said slats ,as said actuating member is shifted laterally.

2. A Venetianfblind structure comprising a frame, vertical slats rotatably mounted on said frame upon vertical axes, a depending actuating pin carried by each slat, an actuating bar shiftable laterally of said frame, a plurality of protruding slotted spring pin engaging fingers detachably engaging said pins of said slats for rotating said slats as said actuating member is shifted laterally, and a transverse bar carried by said frame, said actuating bar resting upon said transverse bar and slidable longitudinally and outwardly of the transverse bar andtransversely of said frame.

3. A Venetian blind structure comprising a frame, vertical slats. rotatably mounted on said frame upon vertical axes, a depending actuating pin carried by each slat, an actuating 'bar shiftab-le laterally of said frame, a plurality of protruding slotted spring pin engaging fingers detachably engaging said pins of said slats for rotating said slats as said actuating member is shifted laterally, a transverse bar carried by said frame, said actuating bar resting upon said transverse bar and slidable longitudinally and outwardly of the transverse bar and transversely of said frame, and a bracing bracket carried by said transverse bar and projecting therefrom for supporting said actuating bar beyond the area of the transverse bar.

4. A Venetian blind structure comprising a frame, vertical slats rotatably mounted on said frame upon vertical axes, a depending actuating pin carried by each slat, an actuating bar shiftable laterally of said frame, a plurality of protruding slotted .spring pin engaging fingers de- REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 5,528 Williams Aug. 5, 1873 59,553 Cabell Nov. 13, 1866 Number 6 Name Date Hill Feb. 24, 1880 Ballard Mar. 25, 1890 Kneip Feb. 17, 1391 De Vries July 14, 1903 Holland Mar. 31, 1914 Molina June 25, 1929 Simon Oct. 10, 1933 Hart Dec. 20, 1938 Blunenthal Sept. 26, 1939 Sayles July 21, 1942 Sienicki Nov. 3, 1942 Huff July 13, 1943 Sperling July 2, 1946 

